When Darkness Overwhelms

Raindrops drumming on my pane... An Oriental Poetry Entry (Form: Ambahan)

When Darkness Overwhelms

Raindrops drumming on my pane
reverberate in my brain,
in a dark, dirge-like refrain
slowly driving me insane.
I feel my energy drain,
only loss and never gain,
leaving only silent pain.
I wait for the sun again,
splashing like a yellow stain,
a balm to help me attain
freedom from depression’s chains..

An entry for Round 86 of "Invalid Item" 
Prompt: Open
Form: The Ambahan, traditional poetry of the Hanunoo Mangyan people of Mindoro, the Philippines. Monorhym, 7 syllable lines, no line restrictions.